Bed vibrator



FIG. 1 is an elevational view of a bed vibrator showing my new design;

FIG. 2 is a back view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a side view thereof; and,

FIG. 6 is a top view thereof. 

The ornamental design for a bed vibrator, as shown. 